The BBC explores whether love can be put in a bottle:

So, if love really is just a complex chemical reaction, could that most powerful of human emotions be manipulated?

“Oxytocin increases eye gaze, increases our ability to recognise emotions in others,” Professor Young said.

“It may actually enhance our ability to form relationships, and so it is a very real possibility that something like oxytocin could be used in conjunction with marital therapies to bring back that spark.”

Mmmm, oysters as therapy. I know I should probably think about this in terms of the cosmetics and therapy industries but it also reminds me of Kelly’s Heroes when the tanks are led into combat by the hippie Sargent Oddball. He plays music and fires red paint to subdue the Nazis without hurting anyone. Imagine if he could have fired love paint, or sprayed it from airplanes.